With the advancement of China’s smart era, the gradual development of enterprise automation, computer manufacturing integrated system technology, the universal application of automated warehouses and flexible manufacturing systems, AGV intelligent handling robots are used as regulation and discrete logistics management systems of the lian system. As well as the important automated intelligent handling equipment that makes its work continuous, its application range has been developed very rapidly.
Warehouse management occupies a core position in logistics management. In traditional warehousing management, there is data collection by manual input or barcode scanning, and the working efficiency is low; the storage space in the warehouse is not clearly defined, and the stacking is chaotic and unfavorable; the physical inventory technology is backward, which often leads to inconsistencies in accounts; human factors have great influence and errors The rate is high, adding additional costs; lack of process tracking, and difficulties in defining responsibilities. Through Intelligence Logistics, we will increase the upgrading of equipment technology, enhance the level of automation, realize the strategy of replacing people with machines, and effectively solve the existing pain points of warehousing logistics management. The AGV car is an indispensable tool in the intelligent logistics warehouse.
1. Background
Warehouse management occupies a core position in logistics management. In traditional warehousing management, there is data collection by manual entry or barcode scanning, and the working efficiency is low; the storage space in the warehouse is not clearly defined, and the stacking is chaotic and unfavorable; the physical inventory technology is backward, which often leads to inconsistencies; human factors have great influence and errors The rate is high and additional costs are added; there is a lack of process tracking and it is difficult to define responsibilities. Through Intelligence Logistics, we will increase the upgrading of equipment technology, enhance the level of automation, realize the strategy of replacing people with machines, and effectively solve the existing pain points of warehousing logistics management. The AGV car is an indispensable tool in the intelligent logistics warehouse.
2. The AGV system principle
1. AGV (Automated Guided Vehicle) refers to the electromagnetic, optical or visual automatic guidance device, without the need for the driver to safely deliver the goods to the designated place, to The self-rechargeable battery is a power source transportation vehicle. It quickly occupies an automated warehouse with the advantages of not occupying a fixed floor area, high degree of automation, flexible application, safety and reliability, unmanned operation, and convenient maintenance. AGV car is the key equipment of modern logistics system, and its design and development is of great significance for improving the degree of automation and production efficiency.
2. The working principle of the AGV system The brain of the AGV system is a control management system, which is composed of a graphics monitoring system, a radio communication system, a laser guidance system, a reflector navigation system, an information acquisition system, and an automatic charging system. The control center publishes work tasks through wireless devices, and the nearest AGV car at the task point arrives at the specified location according to the information received by the control center to complete the relevant work. During the driving process, the AGV car uses the laser head to scan and calculate the surrounding reflectors to navigate and correct the deviation of the driving route to ensure the accuracy of the driving path. At the same time, it reports its own driving position and job completion progress through the computer system, and reflects it in the image monitoring system. If there is traffic jam during AGV car driving, the control management system will automatically carry out traffic evacuation and management. When the AGV car has insufficient power and cannot work normally, the AGV car will send a charging request signal. After receiving the signal, the control center issues a charging command, and the AGV car automatically travels to the charging station to complete the charging task. At the end of charging, the signal acquisition system will collect the end signal and feed it back to the control center, and then the control center will issue the instruction to end the charging, and the AGV car will complete the charging task.
3. Compared with manual handling, the advantages of AGV automatic transmission
(1) High work efficiency
AGV realizes loading and unloading and back and forth transportation work, implements non-stop refueling, shortens manual refueling time, and AGV car can realize automatic charging function, so as to reach 24 hours Continuous operation work greatly improves work efficiency.
(2) Save management energy The AGV robot is fully intelligently managed, thereby improving the level of intelligent management and effectively avoiding personnel factors.
(3) The development of smart sensors for smart AGV cars with good flexibility and system expansion , in addition to the traditional position, speed, acceleration, etc., also uses machine vision, force feedback, and other multi-smart sensor fusion technology to make decision control. The multi-sensor fusion configuration technology of related equipment has mature applications in Ruifengde’s existing AGV equipment system.
(4) Reliability (Reliability) high with respect to the low efficiency of manual handling, forklift trucks and trailers path of travel, speed, safety of the unknown, the AGV’s travel path and speed control, precise positioning stop, thereby greatly improving the material handling Efficiency, meanwhile, the AGV central management system can monitor the whole process of the AGV car, and the reliability (Reliability) is greatly improved.
(5) Lower costs and expenses The performance of smart AGV cars continues to improve (high speed, high precision, high reliability (Reliability), easy operation and maintenance), and the standardization of functional components has caused the price of the stand-alone to be lowered. The average stand-alone price is from 70,000 The reduction of the yuan to 50,000 yuan can benefit more small and medium-sized enterprises.
(6) High security In order to ensure the AGV’s own safety during the operation, the safety of on-site personnel and various types of equipment, Dongjin Technology AGV adopts multi-level hardware and software security measures.
Third, the operation process of AGV car in the intelligent warehouse
1. Enter the sorting code panel operation When the goods are transported to the warehouse by car, the car will align the tail to the unloading point and match the AGV car driving path. At this time, the control center issues a task to dispatch the nearby AGV trolley to the unloading point, and the AGV trolley will transport the whole box of cargo to the cargo storage and transportation line according to the preset travel path. Because the number of AGV carts is limited, and the number of goods in storage is large, each AGV cart will cyclically complete the “take-and-release” task. In addition, the AGV cart transports the stack of empty pallets to the empty pallet splitting equipment for splitting, ensuring that the matching supply of goods and pallets follows at the same time.
2. Operation in the intelligent transfer area The operation in the intelligent transfer area is automatically completed by the AGV car. After the cargo code disk is completed, the AGV cart takes the entire pallet from the interface and transports it according to the pre-laid operation route, and transports the entire pallet to the storage area interface. Because there are multiple outlets and interfaces for the entire pallet, each AGV cart takes out the goods from the designated interface of the transport sorting code panel according to the instructions of the control management system, and then automatically runs to any warehouse area interface set by the system. Complete automatic sorting and transportation of the entire pallet. At the same time, the entire operation process is carried out under the coordination of the control and management system, ensuring smooth traffic and orderly operation, improving the efficiency of transshipment and storage operations, and increasing the flexibility of the entire system.
3. Operation in the intelligent output area The operation in the intelligent transfer area is also completed by the AGV cart. According to the operation instructions issued by the control management system, the AGV car will travel to the outbound chain machine to remove the entire pallet according to the pre-established route, and then transfer to the automatic disc removal and delivery area interface. There are also multiple interfaces for the entire pallet in the transfer out warehouse area and the interface for the unpacking and delivery area. The AGV trolley can take out the goods from the specified interface under the system’s order and then automatically run to the warehouse area interface set by the system The automatic sorting and transportation of the entire pallet, under the control of the traffic management system, the AGV carts strictly follow the prescribed path, drive independently and operate each other, and can also give each other cars, increasing the smoothness and flexibility of the operation.
4. The goods that are out of the warehouse in the automatic disassembly and delivery area are transported by the telescopic belt conveyor to the rear of the delivery vehicle. According to the “proximity principle”, the control system arranges the nearest AGV car to reach the rear of the car according to the preset path, and will expand and contract. The goods on the belt conveyor are removed and stacked neatly and orderly in the carriage, which avoids manual stacking and improves work efficiency. The empty pallet and zero pallet after the goods are split are put into storage by AGV trolley. The whole process can realize unmanned operation, which improves the intelligence level of warehouse operations.
4. The system value
1. Automatic operation, automatic optimization of routes In the past, the traditional logistics sorting was done manually, not only inefficient, but also heavy workload, requiring a lot of overtime and overtime, and error-prone, so it is easy to affect The image and credibility of the enterprise, and with the AGV cart, you only need to put the shelf items on the agv, you can automatically optimize the route and automatically move the shelves to the destination. Finding people for such goods is extremely convenient and convenient for enterprises.
2. Safe and fast, automatic diagnosis The AGV car works faster and faster than manual, and because it is an artificial intelligence (AI) product, it has a certain self-diagnostic function, so it can also be automatically analyzed and diagnosed during operation. Once a problem occurs, it can be resolved in time.
3. Can receive commands Unlike ordinary handling equipment, AGV carts can receive remote instructions, as long as there is network, wireless or infrared to complete the instruction task, which is very convenient.
4. Realize refined, flexible, and information-based logistics management. AGV carts can be used in conjunction with modern logistics technology, and can realize point-to-point automatic access function. Information processing to make logistics management more intelligent.
Nowadays, problems such as low work efficiency, chaotic inventory division, and backward inventory technology are no longer a problem that plagues enterprise logistics and warehousing management. Ruifengde’s advanced intelligent AGV can solve many problems. Many enterprises have turned to the intelligentization of warehousing and logistics. For example, Amazon uses AGV robots. Although it is the earliest batch of robots, its code scanning, weighing, and sorting functions are not lacking, and it can identify simple information to achieve Zui optimization of the line is said to be able to sort 18,000 pieces per hour. More importantly, through intelligence logistics (Intelligence Logistics), improve the level of equipment technology, improve the level of automation management, realize the situation of AGV robots replacing manual operations, so as to truly solve some problems in the logistics warehousing process, and truly achieve intelligence Warehouse management.
